[athom]

Okay, at first, I was amused with the acronym's similarity to a certain Ford model that... didn't last too long on the market. I've snarked on things like this before, and been downvoted, likely for adding little else to the conversation, so I was going to give this one a miss.

Still, I was curious, so I fed it to the Duck, and got links like:

https://www.edsl.net/

https://www.insystechinc.com/edsl/

Not what was meant, I suspected, which is when I started this reply, and then remembered that other search site everyone seems to like. A search there finally brought up this:

https://wiki.c2.com/?EmbeddedDomainSpecificLanguage

which provided the answer I'm pretty sure I was seeking.

So, for all the rest of us less-enlightened visitors who might not actually know, I believe that EDSL (in this case) means:

Embedded Domain Specific Language